Tin-pack-heating furnace



INVENTOR 3 Sheets-Sheet 2 G. F. soCKMAN Filed Jan. 5, 192e Sept. 14 1926.

TIN PACK HEATING FRNACE ww 9 9. www wwwa .w L www @LW sept. 14, 1926. Y 1,599,594

G. F. SOCKMAN TIN PACK HEATING FURNACE.

Filed Jan. 5, 1926 y 3 Sheets-Sheet 5 ATTORNEYy patented Sept.. ld, llgti.;

' entri ern-ras entrar orrciaenonen i". sockraan, or .narirrnronn innnvnnnn.

rrnrACn-nnnrrnie scannen.

. Application iled January they leave the doubler and conveying them` through the furnace, automatic handling devices being provided kfor so handling thel packs as to assure proper thorough heating `of the same as they pass Athrough the furnace. v

Vlith the above and other objects in view i that will hereinafter appear, thel invention still further resides in the novel details of construction, combination and arrangement of parts, all of which will be first fullydescribed, vthen be particularly pointed out in the appended clai1ns,`reference being had to the accompanyingdrawings, in which Figure 1 is a somewhat diagrammatic-plan view illustrating the invention. y

Btl

Figure 2 is a somewhat diagrammatic side 3' elevation illustrating the invention.

Figure 3 is an enlargedv cross section taken on the line 3-3 on Figure 1.

Figure 4 is ai-diagrammatic'plan view illustrating means for flipping the packs.

Figure 5 is a detail perspective view of a portion ofthe. main conveyor ,chain with a push type of lug .projected therefrom.

lFigure 6 is a detail perspective view of one of the carrier types of lugs -whichrmay' A be connected to project from the chain.

'Figure is a detail cross 'sectron'taken-on the line 7*? on Figure 1.

Figure 8 is.' a diagrammatic cross sectionillustrating a means for. automatically cutting ed the motive power to the-conveyors and for resetting the same.

vFigure 9 is a detail cross section of the cross conveyor table atthe -point of delivery of the endless apron conveyor. t

Figure 10 is a diagrammatic plan of the delivery incline adjacent the offtake pas- Sage. I

Figure 11 is a detail cross section of the inclined trackwady showing the surface thereof corrugate Aln the drawings, 1n which like numerals of :reference indicate like parts in all of the chamber.

5, 192e. sei-nino. ranno.

figures, l 'indicates the walls of a heating furnace which maybe constructed in the usual manner of nre-brick,- steelbeam supported and said walls enclose' a h -iatingy @lb chamber 2 which is to be kept heated to the desired temperature'by any approved heating unit 3. When a heating unit adapted for using .coal as the heating agentisV em ployed any approved type of automatic @l5 Stoker 4 may be employed in -connection.

therewith. rllhe furnace `is provided with two or more downwardly directed dues 5 at the end thereof remote from the heating unit and the said dues communicate with 7@ takeoff stacks 6 which pass upwardly through the sidewalls ofthe furnace near the center and may communicate with each other'above the furnace to emptyinto a.

common takeoff. stack indicated at 7. The

flues and stacks may be provided with suitable dampersffor controlling the same in the usual manner, the dampers not being shown as any their use isv well understood.

At one side of one end `of the furnace is provided an intake passage '-8 and at the like 'sidel of the opposite end of the furnace a similar oiftake passage 9 is provided the said passages being equipped with gravity hanging doors 10-11, respectively. rlFhe doors 10-11 are of the'pivoted pendently hanging type which will freely swing on their pivot to permit passage of devices thereunder and return by gravity to their vertical hanging position. rFhe end wall of the furnace which is equipped with-the pas-4 sage 9 is also provided with a stack removal doorAlQ, through which access may beconveniently had to the vinterior of the heating '-95 As is common in heating furnaces the door of the furnace" is elevatedia'distance above the Hoor of the worksroom and thehoor of my heating chamberiisprovided at one side 1w with-an inclined trackway 13 extending on an upward incline from the intake passage8 i to the offtakepassage 9 and the said track- `way lisprovided with a longitudinally centrally disposed grooveway 14C through which, 105

project the conveyor lugs lwhich are secured to certain links of the endless con- ,veyor chain 16 which travels over end sprockets17 Amounted pn shafts 18 and 19 and in metal guideways SZOemhedded in the 1w' fire-brick of'which the trackway 13 and the base of the furnace are constructed. As the approved type may be employed and 80 guideways 20 and chain 16 are subjected to great heat in passing through the heating chamber it may be -desirable to provide the said guideways with cooling pipes 21 through which water may be circulated to prevent burning out of the said guideways.

At its remote end the inclined trackway 13 merges with a lateral incline 22 which delivers onto a receiving platform 23 con-.

venient to the ent-rance door 12 and of suitable proportions for receiving several stacks of platepacks. It will be observed that the inclined trackway 13 starts at the intake door 8 at the level of'the heating chamber floor and inclines upwardly to a considerable elevation above that floor, thus providing` for the lateral incline 22 vand making it pos.- sible for that incline to be .so constructed as to eiiiciently deliver onto the receiving platform 23 which is approximately on the heating chamber floor level. The lateral incline 22 is. eonti-nuedslightly above its juncl' ture with. the trackway 13 to provide an abutment -ledggge 24, and just'to the leftof the grooveway 14 and in alignment with the lateral incline 22, the trackway 13 is equippedy with a plurality of flipper plungers 25which are vertically movable in guideways formed in the said trackway, the puri'iently adjacent the doubler and being adapted to operate onan` incline to receive the,

packs of tin plate, black plate or sheet 'iron and convey them in the manner indicated in Figures 1 and 2 of the drawing to an elevation above that of the heating chamber floorA and slightly beyond the farthest end of the furnace. The conveyor 27 takes over suit-f able end pulleys 28 mounted'on shafts 29, one of which may be driven by the motor 30 in the manner indicated by Figure 1. Also, one of' the conveyor shafts 29 may be connected by power transmission agencies 3l, with one shaft of the endless conveyor chain 16l for the purpose of imparting movement to that conveyor chain.

The elevated extremity of the apron conveyor'2l delivers onto a short cross table 32, the receiving end of which is ,inclined downwardly backwardly, as at 33, so that the packs delivered thereonto will'slid'e rearwardly intoy enga ement with the stop or abutment fence 34. s the. table 32 extends over toward the furnace it l'at'tens out to a horizontal grooveway in which operates the upper flight of an endless conveyor chain 36 certain links of which are provided with upstanding pusher lugs and the said chainv passes over 'sprockets 'on-shafts 37, "one of which is driven by the 4power 'transmitting devices 38 from .the upper endless apron conveyor shaft 29. The table 32 discharges onto a downwardly inclined slideway 39 whichdelivers'into theintake passage 8, the endlessV conveyor chain 16 working through a recess in the lower end of the incline so that its lugs will engage the tin packs which gravitateto the bottom'of the incline and carry the same through the gravity door 10 and along the trackway 13.

The operation of the device as thus far described is as follows:

The plate sheets are doubled upon themselves on the doubler in the manner well understood to those skilled in the art and the packs 'thus formed aredeposited `on the l conveniently positionedreceiving end of the endless conveyor apron 27 to 'be carried upwardly to the rear delivery end of the said apron and `therel deposited upon the cross table 32,. As eac'h pack is deposited upon the table 32 it will gravitate rearwardly into engagementv with the fence 34 and will be engaged by one ofthe upstanding lugs ou the conveyor chain 3G which will convey it across the table in the direction indicated by the' arrow and deposit the same onto the inoline 39 down which the same will gravitate into position .for beingpickedup by one of the upstanding lugs with which certain of the links ofthe conveyor chain 16 is providedand carried through the gravity door 10 and al'ong'tlhe traekway 13.4

As each pack reaches a position lcentrally opposite the incline 22 it, will be directif,7 over the ilipper plungers 25 when the same" will be automatically actuated or quickly elevated in a manner soon to 'be described for the' purpose of flipping the vsaid pack reversely onto the incline 22, to slide down onto the receiving platform 23. During this reversing action imparted to the packs, should the said packs tend to slide laterally they will come into Contact with the abutment ledge-24 so that proper reversing of the faces of the pack from a one side face up position on the trackway 13 tothe reverse face side up position on the platform 23v is assured.

To provide for the. proper operation .of

plane, as at 35, to provide a discharge end., on `an eccentric 44 around which takes the The table 1s provided witha longitudinal strap 45 connected by the operatingl rod 46,

The shafty 42 has mounted thercrasante with across bar 4:7 secured to the .y small and consequently a quick projection and retraction ot the plunge1s'25 sumcient tor assuring perfect reversing of the plate packs .and the depositing thereof onto the inoline 22.

To provide for throwing the single rotation clutch into operation to impart a desired single rotation to the shalt i2 T provide a pivoted lever spring-held as at 51 to a normal positionprojected into the path of the upstanding lugs 15 on the conveyor chain 16 so that the said lever will be rocked each time one of the lugs oit the chain passes the same and spring-returned to its normal position rorengagement by the next lug. The lever is extended beyond its pivot and 'connected at 52 to the clutch so that'each time the lever is rocked the' clutch will be brought into action to impart asingle rotation to the plunger actuating device.

As successive onesof the packs arer deposited onto the receiving platform 23 a con siderable stack thereof will soon accumulate and it is desirable t'o shift such stack along th'eplatform 23 both to 'facilitate removal through "the door 412 and to provide space' :torfaccommodating the next' stack to be accumulated. ll desire to accomplish this manually and provide la stack pushing plunger. 53 whichV extends into engagement with. the 'accumulated stack in the' vmanner illustrated in Figure 3 of the drawings land which is connected :to a'piston 54 reciprocable in a steam or air cylinder 55 to the opposite ends .of which conduit passes .56 are -connected which communicate through the control valve 57 with the pressure line 58. Thus, by actuating the -valve control 57,'-steam or air under pressure may be ad* i mitted into the desiredend of the cylinder to act on the piston to retract or project the plunger.

When my apparatus is to be operated in the manner heretofore described TemplOy straight pusher lugs 59 which are removably secured to project from the conveyor lugs 15 on the chain 16, the said lugs being adapted:

to .project vertically in a manner forengaging behind an edgemof the packs to push them along the trackway 13 inthe manner indicated in Figures 1 and 5 of the drawings.

In this; form of. the invention, inwhich the ypacks are conveyed flatly alon l fr the trackway l13, the said trackway may be corrugated longitudinally, as indicated at 60, to permit heat circulation beneath the plates to ef-v lect uniform heating thereof as far as possible. 'lBy thus providing the corrugations uniform heating of the pack is possible and if it is desired the dipping or reversing action imparted to the packs and their deposit onto the receiving platform 23 may be eliminated and they may be permitted to continue `their travel out through the otake passage?) through the door'll, it being understood, of course, that in this case the clutch 'actuating lever 50 would be removed trom operative position.

However, when it is desired to convey the packs directly through the furnace without a reversing action T prefer to use upstanding supporting lugs 61 which may be substituted 4for the lugs -59 and each of which includes an angled stack edge receiving troughway 62 anda plurality or' upstanding fingers 63. These lugs .are so arranged on the chain 16 that as'the chain passes up' the pack and elevatetthe same to an inclined l i position to carry the samea along the trackway 13 and thus permitting perfect heat contact with both facesQo thel said packl while traversing the trackway 18. Tn this case all of the packs are conveyed directly through the odtake passage 9 and its door 1l and are deposited onto the downwardly inclined delivery chute 64,-the bottom of which may be positioned conveniently ad# acent the first roll set diagrammatically indicated at 65.

A cutout switch 66 is spliced in the electric `circuit 67 which. supplies power to the conveyor motor .30 and the said switch is located in positionfor being engaged by the swinging door 11 each time a pack is delivered through the said door onto the chute 6i, to thus automatically cut outthef motor and stopv the movement of the 'conveyor' chain 16. A switch resetting magnet 68 may be provided in a power circuit 69 embracing a control switch 7 0 positioned convenient to the attend-ant or attendants at the bottom of the chute 64C, so that after the power for operating the conveyor chain 16 has been automatically cut ofi', after a pack has been deposited onto a chute, they may reset 'the ysame to restart the motor and again position the cutout lever for being engaged when the next plate is discharged.

Thus, as each pack is deposited onto the -chute 64, operation of the vconveyor chain may be .automatically cut out so that too kmany' of the packs will n-ot be delivered at one time vto crowd the attendant feeding the packs from the chute to the rolling device.

Tlie'tin packs are indicated at 71 and the pack stacks at'72. I

l In the foregoing description I have dis-f.

closed a furnace and apparatus for more conveniently and effectively handling and heating tin plate, black plate or sheet iron in a manner assuring perfect heating theree of-With a. minimum of effort and in a man-l ner rendering possible the use of a minimum of necessary factory capacity' to accomplish the required purposes.

F rom the fore oing description, taken in connection With t ie accompanying drawings, it is thought that the novel details of construction, the manner of operation and the advantages of my invention will be readily apparent to those skilled in the art to which the invention relates.

What I claim is: I p 1. Inl a tin-pack heatmg furnace, wherein is provided a heating chamber having an inlet at one place and lan outletv at another place., gravity doors/for said inlet and outlet, and an endless pack conveyor passing 'through said chamber from inlet to outlet;

a primar .conveyor for carrying the pack from a p ace adjacent the outlet part of the furnace outside lto a place adjacent the inlet part of the furnace, another conveyor to receive the pack from the primary conveyor and deliver the same transversely, and an incline which receives the pack from the'transverso conveyor .and in turn delivers it to the endless conveyor Within the heating chamber.

2. In a tin-pack heating furnace, a heating chamber having an inlet at one place and an outlet at another place, gravity doors for said inlet and outlet, an endless pack conveyor passing through said chamber from inlet to outlet, means for delivering tin-packs to the endless pack conveyor, said chamber having pack receiving portions, and means to eject the'pack from the endless pack conveyor within `the furnace chamber and stack the same on the pack receiving portions.

3. In a tin-packheating furnace, a. heating chamber having an inlet at one place and an outlet at another place, gravity doors for said inlet and outlet, a-n endless pack conveyor passing through said chamber4 from inlet to outlet, means for delivering tin-packs to the endless pack conveyor, said,

means and move it laterally and then deliver l combination Wit chamber, means for moving the pafck back- Wardly 'from the inlet through the chamber toward the outlet thereof.

,5. In tinpack heating-furnaces, Which include a heating chamber heaving an inlet `and anexit, means for moving the pack` from the inlet through the chamber toward the outlet thereof,l and means toremove the pack from said last named moving means and stack the same Within the furnace adjacent the outlet thereof.

6. In tin-pack heating furnaces, which include a heating chamber having an inlet and an exit, means for moving the pack from the inlet through the chamber toward the outlet thereof, and meansvfor removing the pack laterally off said last named moving means and stacking the same Within the furnace.

7. In tin-pack heating furnaces, Which include a heating chamber having an'inlet and 'an exit, means for moving the pack from the inlet through the chamber toward the outlet thereof, means to remove-the pack from said last .named moving means and stack'the same Within the furnace adjacent the outlet thereof, and means controlled by said last named moving means for operating said removing-means.

8. In tinepack heating' furnaces, which.

include a heating chamberhaving an inlet and an exit, means for moving the pack from the inlet through the chamber toward the outlet-thereof, means for removing the pack laterally oil' said last namedmoving means and stacking thel same Within the furnace, and means controlled by said last named moving means for operating said removing means.

9. In tin-pack heating furnaces, which include a heating chamber having an inlet and an eXit, means for moving the pack from the inlet through the chamber tow-ard the outlet thereof, pack engaging means controlled to operate at predetermined intervals to remove the pack from said last named moving means within the furnace, Aand an incline onto Which said pack so removed is deposited to shoot the pack to an-` other location W'ithin the furnace.

10. In a tin-v ack heating furnace the ing an inlet and an outlet end, of means for conveying the pack through the furnace to the outlet end of the heating chamber, pack discharging and turn-over mechanism for removing the pack from the conveyor Within the furnace and turning it over to expose the other side, means to pile the packs in a stack within the furnace, and means for shifting a-piled stack to another place in the furnace to make room for the piling of another stack.

l1. In av tin-pack heating furnace, the

a heating chamber hav-k .it backwardly into the inlet of theheatingl" laov combination -with :arrheating chamber having an inlet and an outlet end, of means for conveying the pack through the furnace/to4 the outlet end of the heating chamber thereof, and pack discharging and turn-over y mechanism for removing the pack from the conveyor within the furnace and turning it A over to expose the other side. Y

' -posevthe other side,

l l2. In a tin-pack 4heatingl furnace, the combination with aV heating chamber ha-V- .ing an 'inlet and an outlet end, of means for conveying/the packs tli'roughthe furnace to the outlet end'of the heating chamber therev of, pack discharging and turn-over mechanism Vfor removing the pack from the conf ,veyor Within the furnace and turning it over to expose the other side, and means to pile the packs in stacks Within the furnace.

13. In a. tin-pack heating furnace, the combination with `a heating'chamberwhaving an "inlet and an outlet end, of means for convey-ing the packs through the furnace to the outlet end of the iheating'chainbe'r, pack` discharging` andA turn-over mechanism for removing the packs from the conveyor Within the furnace and turning them over to exprising a plunger to engage beneath the packs at one side of the centen'of gravity to raise the packs on edge. I

14. ln a tin-pack heating furnace, the combination with a. heating chamber hav-- ing an inlet and an outlet end, of meansfor conveying the4 packs through the furnace to.

the outletend of the heating chamber, pack discharging and turii-over mechanism for removing the packs from the conveyorvvthin the furnace' and turning them' over to exsaid mechanism com,4

-pose the other side, 'said mechanism comlprising 'a plungerto engage beneath the conveying *the packs through the furnace to' the outlet end of the heating chamber, pack disch arging and turnfover 'mechanism for .removing the packs from the conveyor Withy in the furnace andturning' .them over to expose the other side, said mechanism comprising a plunger to engagebeneaththe packs 'at one'si de of the center of gravity to raise the packs on edge, an abutment' to bel engagediby the pack edge opposite the plunger to retard the saine, and means governed by the movement of the Vconveyor Within the furnace chamber for operating said plunger. at timed intervals` f T61 fn a tin-pack heating furnace, the

combination withl a-heating chamber having an inlet land an. outlet end, of means forA conveying the pack. through the furnace to the Outlet -endf the heating chamnisni .for removing the. pack from the conveyor- Within' the furnace-and turning it ber, pack, discharging and turn-.over inecl1aA von over to expose the other side, means to pile the packs in a stack within the furnace, and a laterally shiftable stack engaging plungen controllable from Without the furnace. 

